13 



Also from Ri'o de Janeiro and Minas Gerais, Brazil, to Uruguay (Bailey, 1970b; Achaval & Olmos 1997). 

 Paranaense (Campos district), Yungas, Chaqueiia, Espinal and Monte provinces, principally in open areas. 



Chironius Fitzinger, 1826 



Chironius Fitzinger, 1826. Neue Class, der Rept.: 31. 



Erpetodryas Boie, 1826. In Schlegel, Bull. Sci. Nat. Geol. Pan's 9: 237. 



Herpetodryas Wagler, 1830. Emendation to Erpetodryas Boie, 1826. Nat. Syst. Amphib.:180. 



Mflcrop^y Wagler, 1830. Nat. Syst. Amphib.; 182. 



Hylophis Fitzinger, 1843. Syst. Rept.: 26. 



Phyllosira Cope, 1862. Proc. Acad. Nat. Sci. Phila. 14: 349. 

 Type species: Coluber carinatus Linnaeus, 1758. Systema Naturae 10: 223. 



Chironius bicarinatus (Wied, 1820) 

 Coluber bicarinatus Wied, 1820. Reise nach Brazilien 1: 181. 

 Natrix bicarinata Merrem, 1820. Tent. Syst. Amph.: 117. 



Erpetodryas bicarinatus Boie, 1826. In Schlegel, Bull. Sci. nat. Geol. Paris 9: 237. 



Herpetodryas bicarinatus Wagler, 1830. Nat. Syst. Amphib.: 180. 



Herpetodryas bicarinata Fitzinger, 1843. Syst. Rept. :26. 



Herpetodryas carinatus Dumeril, Bibron & Dumeril, 1854. Erp. Gen. 7 (2): 207. 



Herpetodryas carinatus var. bicarinata Boettger, 1898. Kat. Rept. Samml. senck. Mus. 

 naturf. Gesellsch. 2: 55. 



Chironius carinatus (not Linnaeus) Amaral, 1925. Proc. U. S. nat. Mus. 67: 4. 



Chironius bicarinatus Bailey, 1955. Occ. Pap. Mus. Zool. Univ. Michig. 571: 8. 

 Type locality: Lake near the Rio Jacu, 5 "leguas" south of Espirito Santo city, Espirito Santo, Brazil. 

 Distribution: Corrientes, Entre Rios and Misiones (Giraudo, 1997). Along the Atlantic coast, from Salvador 

 to northwestern Uruguay, and northeastern Argentina and eastern Paraguay (Dixon et al., 1993; Achaval & 

 Olmos, 1997; Giraudo, 1997). Paranaense province. 



Comments: Mentioned in Chaco, Formosa and Santa Fe, besides the provinces given above (Bergna & 

 Alvarez, 1990; Williams & Francini, 1991). Giraudo (1997) believes that these citations may be 

 missidentifications of Chironius quadricarinatus maculoventris because individuals from UNNEC collection 

 cited by Bergna & Alvarez (1990) belong to that species. Also, Cei (1993) mentioned that both species may 

 be confused. 



Chironius exoletus (Linnaeus, 1758) 

 Coluber exoletus Linnaeus, 1758. Syst. Nat. 10: 223. 

 Natrix exoleta Laurenti, 1768. Synopsin Reptilium: 78. 



Coluber carinatus (not Linnaeus) Merrem, 1820. Tentamen Systematic. Amphibiorum: 120. 

 Coluber pyrrhopogon Wied, 1824. Abb. Natur. Bras.: 666. 

 Tyria exoleta Fitzinger, 1826. Neue Class, der Rept.: 60. 



Erpetodryas exoletus Boie, 1826. In Schlegel, Bull. Sci. Nat. Geol. Pan's 9: 237. 

 Herpetodryas exoletus Wagler, 1830. Nat. Syst. Amphib.: 180. 



Herpetodryas carinatus (not Linnaeus) Cope, 1868. Proc. Acad. Nat. Sci. Philad. 6: 105. 

 Zaocys tomieri Werner, 1896. Verb. Zool. Bot. Ges. Wien 46: 15. 

 Chironius carinatus (not Linnaeus) Amaral, 1931. Bull. Antiv. Int. Am. 4: 91. 

 Chironius pyrrhopogon Bailey, 1955. Occas. Pap. Mus. Zool. Univ. Michigan 571: 12. 

 Chironius cochranae Hoge & Romano, 1969 {partim). Mem. Inst. Butantan 34: 93. 

 Chironius exoletus Hoge, Romano & Cordeiro, 1978. Mem. Inst. Butantan 40/41: 41. 

 Type locality: "habitat in Indiis" (in enor). 



Distribution: Northern Misiones (Giraudo, 1997). Wide distribution in Central and South America, in 

 Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guianas, Surinam, French Guiana, Panama and Costa 

 Rica (Dixon et al. 1993; Perez Santos & Moreno, 1988; Fugler & De la Riva, 1990). Paranaense province. 



